/* Copyright (c) 2011, 2017, Oracle and/or its affiliates. All rights reserved. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License, version 2.0, as published by the Free Software Foundation. This program is also distributed with certain software (including but not limited to OpenSSL) that is licensed under separate terms, as designated in a particular file or component or in included license documentation. The authors of MySQL hereby grant you an additional permission to link the program and your derivative works with the separately licensed software that they have included with MySQL. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License, version 2.0, for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include "m_string.h" #include "my_inttypes.h" #include "my_stacktrace.h" #include "unittest/gunit/test_utils.h" namespace segfault_unittest { using my_testing::Mock_error_handler; using my_testing::Server_initializer; class FatalSignalDeathTest : public ::testing::Test { protected: virtual void SetUp() { ::testing::FLAGS_gtest_death_test_style = "threadsafe"; initializer.SetUp(); } virtual void TearDown() { initializer.TearDown(); } Server_initializer initializer; }; TEST_F(FatalSignalDeathTest, Abort) { #if defined(_WIN32) EXPECT_DEATH_IF_SUPPORTED(abort(), ".* UTC - mysqld got exception.*"); #else EXPECT_DEATH_IF_SUPPORTED(abort(), ".* UTC - mysqld got signal 6.*"); #endif } TEST_F(FatalSignalDeathTest, Segfault) { #if defined(_WIN32) int *pint = NULL; /* After upgrading from gtest 1.5 to 1.6 this segfault is no longer caught by handle_fatal_signal(). We get an empty error message from the gtest library instead. */ EXPECT_DEATH_IF_SUPPORTED(*pint = 42, ""); #elif defined(__SANITIZE_ADDRESS__) /* gcc 4.8.1 with '-fsanitize=address -O1' */ /* Newer versions of ASAN give other error message, disable it */ // EXPECT_DEATH_IF_SUPPORTED(*pint= 42, ".*ASAN:SIGSEGV.*"); #else int *pint = NULL; /* On most platforms we get SIGSEGV == 11, but SIGBUS == 10 is also possible. And on Mac OsX we can get SIGILL == 4 (but only in optmized mode). */ EXPECT_DEATH_IF_SUPPORTED(*pint = 42, ".* UTC - mysqld got signal .*"); #endif } // Verifies that my_safe_utoa behaves like sprintf(_, "%llu", _) TEST(PrintUtilities, Utoa) { char buff[22]; ulonglong intarr[] = {0, 1, 8, 12, 1234, 88888, ULONG_MAX, ULLONG_MAX}; char sprintbuff[22]; for (size_t ix = 0; ix < array_elements(intarr); ++ix) { char *my_res; sprintf(sprintbuff, "%llu", intarr[ix]); my_res = my_safe_utoa(10, intarr[ix], &buff[sizeof(buff) - 1]); EXPECT_STREQ(sprintbuff, my_res); if (intarr[ix] <= ULONG_MAX) { sprintf(sprintbuff, "%lu", (ulong)intarr[ix]); my_res = my_safe_utoa(10, (ulong)intarr[ix], &buff[sizeof(buff) - 1]); EXPECT_STREQ(sprintbuff, my_res); } } } // Verifies that my_safe_itoa behaves like sprintf(_, "%lld", _) TEST(PrintUtilities, Itoa) { char buff[22]; char sprintbuff[22]; longlong intarr[] = {0, 1, 8, 12, 1234, 88888, LONG_MAX, LLONG_MAX}; for (size_t ix = 0; ix < array_elements(intarr); ++ix) { char *my_res; sprintf(sprintbuff, "%lld", intarr[ix]); my_res = my_safe_itoa(10, intarr[ix], &buff[sizeof(buff) - 1]); EXPECT_STREQ(sprintbuff, my_res); ll2str(intarr[ix], buff, 10, 0); EXPECT_STREQ(sprintbuff, buff); sprintf(sprintbuff, "%lld", -intarr[ix]); my_res = my_safe_itoa(10, -intarr[ix], &buff[sizeof(buff) - 1]); EXPECT_STREQ(sprintbuff, my_res); // This one fails .... // ll2str(-intarr[ix], buff, 10, 0); // EXPECT_STREQ(sprintbuff, buff) // << "failed for " << -intarr[ix]; sprintf(sprintbuff, "%llx", intarr[ix]); my_res = my_safe_itoa(16, intarr[ix], &buff[sizeof(buff) - 1]); EXPECT_STREQ(sprintbuff, my_res); ll2str(intarr[ix], buff, 16, 0); EXPECT_STREQ(sprintbuff, buff); sprintf(sprintbuff, "%llx", -intarr[ix]); my_res = my_safe_itoa(16, -intarr[ix], &buff[sizeof(buff) - 1]); EXPECT_STREQ(sprintbuff, my_res) << "failed for " << -intarr[ix]; ll2str(-intarr[ix], buff, 16, 0); EXPECT_STREQ(sprintbuff, buff); } } // Various tests for my_safe_snprintf. TEST(PrintUtilities, Printf) { char buff[512]; char sprintfbuff[512]; const char *null_str = NULL; my_safe_snprintf(buff, sizeof(buff), "hello"); EXPECT_STREQ("hello", buff); my_safe_snprintf(buff, sizeof(buff), "hello %s hello", "hello"); EXPECT_STREQ("hello hello hello", buff); my_safe_snprintf(buff, sizeof(buff), "hello %s hello", null_str); EXPECT_STREQ("hello (null) hello", buff); my_safe_snprintf(buff, sizeof(buff), "hello %d hello", 42); EXPECT_STREQ("hello 42 hello", buff); my_safe_snprintf(buff, sizeof(buff), "hello %i hello", 42); EXPECT_STREQ("hello 42 hello", buff); my_safe_snprintf(buff, sizeof(buff), "hello %u hello", (unsigned)42); EXPECT_STREQ("hello 42 hello", buff); my_safe_snprintf(buff, sizeof(buff), "hello %llu hello", ULLONG_MAX); sprintf(sprintfbuff, "hello %llu hello", ULLONG_MAX); EXPECT_STREQ(sprintfbuff, buff); my_safe_snprintf(buff, sizeof(buff), "hello %x hello", 42); EXPECT_STREQ("hello 2a hello", buff); my_safe_snprintf(buff, sizeof(buff), "hello %x hello", -42); sprintf(sprintfbuff, "hello %x hello", -42); EXPECT_STREQ("hello ffffffd6 hello", buff); EXPECT_STREQ(sprintfbuff, buff); my_safe_snprintf(buff, sizeof(buff), "hello %llx hello", (longlong)-42); sprintf(sprintfbuff, "hello %llx hello", (longlong)-42); EXPECT_STREQ("hello ffffffffffffffd6 hello", buff); EXPECT_STREQ(sprintfbuff, buff); void *p = this; my_safe_snprintf(buff, sizeof(buff), "hello 0x%p hello", p); snprintf(sprintfbuff, sizeof(sprintfbuff), "hello 0x%llx hello", (long long)p); EXPECT_STREQ(sprintfbuff, buff) << "my_safe_snprintf:" << buff; } } // namespace segfault_unittest